fix: Set input type for AddLinkModal

The input type for the AddLinkModal was set to 'text' instead of 'url'.
This causes various frustrations when using the web app on mobile; for
example, autocorrect is applied to URLs that are manually typed.

https://developer.mozilla.org/en-US/docs/Learn/Forms/HTML5_input_types#url_field

packages/web/components/templates/homeFeed/AddLinkModal.tsx

@@ -101,7 +101,7 @@ export function AddLinkModal(props: AddLinkModalProps): JSX.Element {
               }}
             >
               <FormInput
-                type="text"
+                type="url"
                 value={link}
                 autoFocus
                 placeholder="https://example.com"